Lighting device



FIG. 1 is a side perspective view of the new design for a lighting device;

FIG. 2 is a left side elevational view of the lighting device shown in FIG. 1;

FIG. 3 is a right side elevational view of the lighting device shown in FIG. 1;

FIG. 4 is a front elevational view of the lighting device shown in FIG. 1;

FIG. 5 is a rear elevational view of the lighting device shown in FIG. 1;

FIG. 6 is an enlarged top plan view of the lighting device shown in FIG. 1; and,

FIG. 7 is an enlarged bottom plan view of the lighting device shown in FIG. 1.

The broken lines which define the bounds of the claimed design form no part thereof. 

CLAIM The ornamental design for a lighting device, as shown and described. 